23164505 has 32 divisors (see below), whose sum is σ = 34944000. Its totient is φ = 14648256.

The previous prime is 23164499. The next prime is 23164507. The reversal of 23164505 is 50546132.

It is not a de Polignac number, because 23164505 - 2⁶ = 23164441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23164507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21776 + ... + 22814.

It is an arithmetic number, because the mean of its divisors is an integer number (1092000).

Almost surely, 2^23164505 is an apocalyptic number.

It is an amenable number.

23164505 is a deficient number, since it is larger than the sum of its proper divisors (11779495).

23164505 is a wasteful number, since it uses less digits than its factorization.

23164505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078 (or 1064 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 23164505 is about 4812.9517969745. The cubic root of 23164505 is about 285.0631028836.

The spelling of 23164505 in words is "twenty-three million, one hundred sixty-four thousand, five hundred five".